Abstract
A gap bridging system for a rail vehicle, for bridging the gap between the floor of a passenger compartment and a station platform, includes a component support and a step plate which is mounted with respect to the component carrier by a slide mounting such that it can slide, the slide mounting includes a rolling bearing linear guide and two sliding bearing linear guides.
Claims
1. A gap bridging system of a rail vehicle for bridging a gap between a passenger compartment floor and a platform, comprising: a component carrier; and a step plate which is mounted with respect to the component carrier by a slide mounting such that said step plate is slidable within the rail vehicle; wherein the slide mounting includes a rolling bearing linear guide and two sliding bearing linear guides; wherein the rolling bearing linear guide comprises a fixed bearing, which transmits forces between the step plate and the component carrier in each spatial direction oriented at right angles to the movement direction of the step plate; and wherein the sliding bearing linear guides comprise floating bearings.
2. The gap bridging system for a rail vehicle as claimed in claim 1, wherein the sliding bearing linear guides are arranged on outer ends of the step plate in a direction of movement of the step plate and the rolling bearing linear guide is arranged centrally between the sliding bearing linear guides.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The invention is explained below based on exemplary embodiments and with reference to the figures in the drawings, in which:
(2) FIG. 1 shows a principle of a gap bridging system in accordance with the invention;
(3) FIG. 2 shows an oblique view 1 of the gap bridging system of FIG. 1;
(4) FIG. 3 shows an oblique view 2 of the gap bridging system of FIG. 1; and
(5) FIG. 4 shows a floating bearing in accordance with the invention.
DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS
(6) FIG. 1 shows by way of example and schematically a principle of a gap bridging system. A highly abstract oblique representation of a gap bridging system 1 is shown, which comprises a step plate 3 mounted such that it can slide linearly. This step plate 3 is mounted via a slide mounting comprising two sliding bearing linear guides 5 and a rolling bearing linear guide 4 such that it can slide. Here, the sliding bearing linear guides 5 are formed as floating bearings and transmit forces between the step plate and a component carrier 2 or a car body only in the vertical direction. The rolling bearing linear guide 4 transmits forces between the step plate and a component carrier 2 in all spatial directions with the exception of the extension direction of the step plate 3. The gap bridging system 1 comprises, in addition to the step plate 1 and the linear guides 4, 5, a component carrier 2 via which the gap bridging system 1 can be connected to a car body of a rail vehicle.
(7) FIG. 2 shows by way of example and schematically a gap bridging system in a first oblique view. A practical embodiment of a gap bridging system 1 in an installation situation in a rail vehicle is represented. Here, to illustrate the function clearly, the step plate 3 is represented such that it does not conceal the further components of the gap bridging system 1. In this way, it is possible to see inside the slide mounting. The gap bridging system 1 comprises a component carrier 2 upon which, in addition to two sliding bearing linear guides 5 and a rolling bearing linear guide 4, attachment points for a power drive and further components are provided. The gap bridging system 1 can be connected via the component carrier 2 to a car body of a rail vehicle. In the exemplary illustrated embodiment, the sliding bearing linear guides 5 are formed as a sliding guide with a guide rail 7 and two sliders 6 which slide along the guide rail 7, where sufficient play is provided between the guide rail 7 and the sliders 6 to enable the sliding bearing linear guides 5 to perform their function as floating bearings.
(8) FIG. 3 shows by way of example and schematically a gap bridging system in a second oblique view. The gap bridging system 1 from FIG. 2 is represented in another oblique view, where in the embodiment of the centrally arranged fixed bearing as the rolling bearing linear guide 4 is particularly visible. This rolling bearing linear guide 4 enables the step plate 3 to slide with as little play as possible, where the sliding bearing linear guides 5 transmit the vertical forces acting on the step plate 3 to the component carrier 2 and subsequently to a car body.
(9) FIG. 4 shows by way of example and schematically a floating bearing. A sectional view through one of the two sliding bearing linear guides 5 of a slide mounting as in FIGS. 2 and 3 is shown. A guide rail 7 is connected via a retainer 8 firmly to the component carrier 2. A slider 6 surrounds the guide rail 7 through approximately 270 degrees, so that the retainer 8 is connected to the guide rail 7 in the remaining angular range. The hole of the slider 6 that surrounds the guide rail 7 is configured such that there is a horizontal play of sufficient magnitude to enable a deformation of the step plate 3 or the component carrier 2 without this generating reactive forces between the step plate 3 and the component carrier 2, with the sliding bearing linear guide 5 thus acting as a floating bearing. The illustrated embodiment of a floating bearing in the form of a sliding bearing linear guide 5 is formed such that, when a certain force acting horizontally on the step plate 3 is exceeded, it absorbs this force in the same way as the rolling bearing linear guide 4 and thus relieves the rolling bearing linear guide 4. To this end, the plays in the rolling bearing linear guide 4 and the guiding of the sliders 6 on the guide rail 7 must be coordinated with one another such that the floating bearing also transmits horizontal forces only once certain horizontal forces and corresponding deformations of the component have been exceeded.
(10) Thus, while there have been shown, described and pointed out fundamental novel features of the invention as applied to a preferred embodiment thereof, it will be understood that various omissions and substitutions and changes in the form and details of the devices illustrated, and in their operation, may be made by those skilled in the art without departing from the spirit of the invention. For example, it is expressly intended that all combinations of those elements and/or method steps which perform substantially the same function in substantially the same way to achieve the same results are within the scope of the invention. Moreover, it should be recognized that structures and/or elements shown and/or described in connection with any disclosed form or embodiment of the invention may be incorporated in any other disclosed or described or suggested form or embodiment as a general matter of design choice. It is the intention, therefore, to be limited only as indicated by the scope of the claims appended hereto.
